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Pollination

Pollination. https:// www.youtube.com/watch?v=26oq5tWrb2Q. Pollination. Because plants can’t go find a mate they require the help of: Abiotic - Pollination by wind, water or gravity Biotic - Pollination by an organism. Left – Abiotic pollination.

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Pollination

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  1. Pollination https://www.youtube.com/watch?v=26oq5tWrb2Q

  2. Pollination Because plants can’t go find a mate they require the help of: Abiotic - Pollination by wind, water or gravity Biotic - Pollination by an organism.

  3. Left – Abiotic pollination • What are three things that you think are important about pollination with wind?

  4. Abiotic – Wind pollination – Most common • Flowers are usually unscented and with little color. • Have smaller petals or none. • Do not produce nectar. • Male and female reproductive structures are commonly found on separate plants (dioecous) • Large amounts of pollen is produced.

  5. Why? • If you are not trying to attract a pollinator, you do not need to advertise. • It saves on energy. • Negative – you need to release A LOT of pollen – part of the reason so many people have allergies.

  6. Weeping willow - Again Photo by Mrs. Gilmore This is pollen up really close.

  7. Biotic Pollination – Right side The plant must have: • Some kind of reward such as food (nectar), or protection • Some way to advertise such as odor, color, shape, texture. • A way to get the pollen on the visitor but also a way to transfer it to the next flower. • Specialized structures to aid in pollen transfer.

  8. Left - Biotic Pollination • What are critters that YOU have seen pollinating? Make a list, now. .

  9. Examples of biotic pollinators This hummingbird is a pollinator for this Australian willow in the Gilmore’s back yard. Photo by Mrs. Gilmore

  10. Examples of biotic pollinators There are three different pollinators at these daisies. Can you find them? Photo by Mrs. Gilmore. Calaveras Big Trees

  11. Examples of biotic pollinators Over 300 species of fruit depend on bats for pollination. Mangoes, bananas, guavas

  12. Examples of biotic pollinators This photo, by Colin Paterson Jones, shows a Namaqua Rock Mouse pollinating Protea humiflora (protea is the national flower of South Africa). Not mice only, but shrews, gerbils, and—yes, rats—visit several of the low-to-the-ground species of proteas. .

  13. Specialized structures to aid in pollination. This structure temporarily traps a pollinator to ensure the pollen is transferred

  14. What are three characteristics of plants pollinated by abiotic factors? What are three characteristics of plants pollinated by biotic factors? Left side review:

  15. Answers • What are three characteristics of plants pollinated by abiotic factors? • Small flowers • Exposed pollen • Less bright colors or none at all. • No scent • Lots of pollen • No nectar

  16. Answers • What are three characteristics of plants pollinated by biotic factors? • A way to advertise • Bright colors • Scent – good or bad • Specialized parts • Some kind of reward – like nectar or protection

  17. Left – Final Question – Exit Ticket • What comes first fertilization or pollination? • Explain and write in complete sentences.

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